


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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043 CDUS46 KMTR 270840 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 140 AM PDT WED AUG 27 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR AUGUST 26 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1930 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 90 1:28 PM 105 1944 88 2 94 MINIMUM 60 5:34 AM 45 1955 56 4 56 AVERAGE 75 72 3 75 PRECIPITATION (IN) YESTERDAY 0.00 0.14 2003 0.01 -0.01 0.00 MONTH TO DATE 0.00 0.07 -0.07 T SINCE OCT 1 8.68 15.08 -6.40 14.23 SINCE JAN 1 4.49 9.85 -5.36 11.04 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 13 37 -24 4 SINCE JUL 1 0 4 -4 2 COOLING YESTERDAY 10 7 3 10 MONTH TO DATE 222 182 40 212 SINCE JUN 1 476 533 -57 831 SINCE JAN 1 533 585 -52 875 ................................................................... WIND (MPH) RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 8.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 5:00 AM LOWEST 35 2:00 PM AVERAGE 63 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 87 109 1944 MINIMUM TEMPERATURE (F) 56 44 1955 SUNRISE AND SUNSET AUGUST 27 2025........SUNRISE 6:34 AM PDT SUNSET 7:43 PM PDT AUGUST 28 2025........SUNRISE 6:34 AM PDT SUNSET 7:42 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$